On 04/08/2014 05:25 PM, Stephen Warren wrote:
On 04/08/2014 08:12 AM, Marcel Ziswiler wrote:
Hi there
Looks like the latest T30MQS-P-A3 embedded SKUs that can e.g. be found
on Toradex Colibri T30 V1.1D modules are not yet recognised by the
mainline speedo driver:
[ 0.000000] Tegra30: Unknown SKU 177
[ 0.000000] fuse_speedo_calib: ATE prog ver 4.0
[ 0.000000] Tegra30: CPU Speedo ID 0, Soc Speedo ID 0
[ 0.000000] Tegra Revision: A03 SKU: 177 CPU Process: 2 Core Process: 0
Does this have any adverse effects?
No.
NVIDIA's downstream kernels use SKU (along with other) information to
determine clock/voltage limits, etc. However, we don't have any DVFS
code or aggressive clock settings in mainline at present, so unknown
SKUS won't be a problem. The same goes for mainline U-Boot.
Still, it would be nice to squash the warning for you.
Peter, any chance you could look up the appropriate speedo IDs and fill
in a case for this SKU in tegra30_speedo.c? Is it possible to fill in
all known SKUs?
We actually found some T30IQS-P-A3 chips which have an unknown SKU as well:
[ 0.000000] Tegra Unknown SKU 176
[ 0.000000] Tegra Revision: A03 SKU: 176 CPU Process: 1 Core Process: 0
Any update on any of this?
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